multi-agent-trust

To secure agent-to-agent communication, enforce token-based authentication, validate messages against a schema, and apply strict least-privilege access controls to every inter-agent call. This prevents compromised agents from hijacking your orchestration pipeline.

Multi-agent workflows need authentication and authorization because blindly trusting inter-agent messages allows a compromised or malicious agent to hijack the entire pipeline. Enforcing scoped permissions ensures each agent only accesses the tools and credentials it needs.

The best way to prevent credential access is enforcing least-privilege orchestration, ensuring each agent receives only the tools and credentials it needs rather than the orchestrator's full set. This limits the blast radius of a compromised agent.

To validate messages between subagents, treat all inter-agent communication like untrusted input and validate each message against a defined schema before routing it to the next agent. This prevents malformed or malicious payloads from executing.

Yes, you can enforce shared secrets or signed tokens on every inter-agent call to authenticate agents. The receiving agent must verify the token before processing the message to ensure secure orchestration boundaries.

You need to enforce scoped permissions whenever your code orchestrates multiple agents, subagents, or workflows and agents exchange messages, tasks, or tools across boundaries. This prevents unauthorized access and lateral movement.